alexa Engagement of the NG2 proteoglycan triggers cell spreading via rac and p130cas.
Oncology

Oncology

Journal of Cancer Science & Therapy

Author(s): Majumdar M, Vuori K, Stallcup WB

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Abstract Cells that express the NG2 proteoglycan will spread on surfaces coated with monoclonal antibodies against this membrane-spanning protein. On surfaces coated with the N143 monoclonal antibody, this cell spreading occurs by extension of lamellipodia, suggesting that activation of the small GTPase rac is involved in the observed morphological change. Support for this hypothesis comes from the finding of increased levels of GTP-bound rac in cells spreading on N143-coated surfaces. Furthermore, lamellipodia extension is blocked by transfection of cells with the dominant negative rac construct N17rac, but not by transfection with N17cdc42. Formation of lamellipodia on the N143-coated surfaces is also inhibited by transfection of the dominant negative CasdeltaSD construct. This result implicates p130cas as an additional functional player in NG2-mediated cell spreading. Copyright 2002 Elsevier Science Inc.
This article was published in Cell Signal and referenced in Journal of Cancer Science & Therapy

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